Plow-point



'(No Model.)

J. A. TIGNER.

PLOW POINT.

No. 347,074. Painted Aug. 10, 1886.

UNITED STATES P TENT Erica.

PLOW-POINT.

SPECIFICATION forming part of Letters Patent No. 347,074, dated August 10, 1886.

Application filed April 22, 1886.

To all whom it may concern:

Be it known that I, JAMES ANDREW TIGNER, a citizen of the United States, residing at Gordon, in the parish of Claiborne and State of Louisiana, have invented new and useful Im-' provements in Plow-Points, of which the following is a specification.

My invention relates to improvements in plow-points; and it consists of the peculiar coniloination and novel construction and arrangement of the various parts for service, substantially as hereinafter fully set forth, and specifically pointed out in the claims.

The object of my invention is to provide improved means whereby the point can be easily and readily detached from the stock or foot and shovels or other suitable implements adjusted for use upon the standard, thus providing the farmer withanumber of implements which can be adapted for use upon an ordinary form of plow beam and stock, and consequently effecting a greatv saving of cost to the farmer in the purchase of his implements.

A further object of my invention is to provideaplowwith improved means whereby the point and mold-board are secured upon the stock very rigidly and firmly by the use of a single tliroughbolt, to provide means for reducing the strain and wear on the bolt and bringing it upon the stock and the point and mold-board, and, finally, to provide an improved plow which shall be simple and cheap.

In the accompanying drawings, Figure l is a perspective View of my invention adjusted upon a plow-stock. Fig. 2 is avertical longitudinal sectional view taken th rou gh' the stock with my improvements thereon. Figs. 3 and 4 are detached perspective views of the plowpoint and'the mold-board.

Referring to the drawings, in which like letters of reference denote corresponding parts in all the figures, A designates the plow-stock, which is slotted longitudinally, as at a, and provided at its ends with the abutments or shoulders a, that form the ends of the slot.

B designates the removable plow-point, and O the mold-board,which are of the ordinary or any preferred form, and detachably secured upon the stock by means of a single throughbolt, D, that passes through the mold-board and the stock, and receives a nut, d, at its Serial No. 199,793. (No model.)

threaded end, that secures the bolt and other devices to the stock.

Near one edge the point and mold-board are each provided with a bearing-plate, E, that is formed integral therewith and on the rear faces thereof; or, if it is desired or advisable, these bearingplates may be made separate from the point and mold-board and be secured thereto by means of through-bolts or other like devices. These bearing-plates rest against the front edges of the stock, and theylie flush with the side edges thereof, and the rear faces of the plates are curved or inclined to correspond with the curvature or inclination of the stock, so that they rest or bear squarely and firmly thereon and serve to brace and strengthen the point and mold-board.

The beari ng-plate of the m old-board and stock is tapered longitudinally to cause the same to assume their proper relative positions with reference to the stock, and the lower edge of the mold-board and the upper edge of the point are beveled or inclined, so that when they are adjusted or fitted upon the stock and secured in position thereon the meeting edges overlap, and thus form a lap-j oiut. The outer face of the mold-board and point lie flush with each other at the point or line where they overlap, and thus present a smooth andunbroken surface to the action of the soil, and the meeting ends of the bearing-plates are also beveled and form a lap-joint, as will be readily seen from Fig. 2 of the drawings.

The bearing-plates E of the mold-board and point are provided with rearwardlyextending ribs or flanges F, that are arranged longitudinally of the plates and on the rear faces thereof at their middle. These ribs or flanges are equal in width tothe slot of the stock, and the flanges fit snugly in the said slot, and thus prevent the mold-board and point from lateral play, while the bearing-plates rest on the edges of the stock and further strengthen the parts. The lower edge of the rib or flange of the point bears or rests against the abutment at thelower endsof the slotted stock, and the meeting ends of the ribs or flanges are beveled or inclined to form a lap-joint, which is similar to the joints of the mold-board and point and the bearing-plates therefor.

To secure my improved point and moldboard upon a stock, the rib or flange of the point is first passed through the slot so that the lower edge of the ilange thereof bears against the lower abutinents, a, and the bearing-plate thereof rests, against the outer edges of the stock. The mold-boardis now fitted 011 the stock and the lower edges thereof overlap the upper edges of the point, while the rib or flange passes through the stock and the plate E rests thereon, after which the bolt is passed through an opening, f, in the mold-board, its plate E, and the flange, and on the free end of the bolt is secured a nut, d, awasher or other suitable device being interposed between the nut and rib or flange of the mold-board. It will be seen that the mold-board is very firmly secured to the stock, and asits lower edges over lap the point, the latter is also secured in place, and by means of the ribs and bearing plates the pointand moldboard are prevented from any lateral play, and are braced and strengthened in their proper positions relative to each other and the stock.

The mold-hoard and point can be expeditiously and easily detached by merely removing the single through-bolt and other devices adjusted upon the stock-such, for instance, as shovels, scooters, do

I am aware that plow-stocks oi. the construction herein shown and described are in commen use, and I do not claim this feature, broadly, but limit myself to the peculiar means for securing the point and mold-board detachahly upon the stock by means of a single through-bolt.

the mold-board having the rib fitted in the slot 5 of the stock, the point having a like rib and overlapped at its upper edge by the moldboard,and a single througlrbolt passed through the mold-board and stock, for securing the mold-board and point upon the stock indc- 5o pendent of other fastening devices, substantially as described.

The coznbination,with a slotted stoclaof a mold-board and the point forming a lap-joint at their meeting edges, each provided. with a 55 bearing-plate resting on the stock, and with an extended flange or rib integral with the plate and passing through the slot of the stock, and a single bolt passing through the moldboard and stock, for securing the mold-hoard. 60

and point detachablynpon the stock, substantially as described.

In testimony that I claim the foregoing as my own I have hereto allixcd my signature in presence of two witnesses.

JAINIES ANDREW TIGNEH.

"Witn esscs M, Rams BRYAN, I). J, Saunas. 

